20813334 has 8 divisors (see below), whose sum is σ = 41626680. Its totient is φ = 6937776.

The previous prime is 20813323. The next prime is 20813347. The reversal of 20813334 is 43331802.

It is a sphenic number, since it is the product of 3 distinct primes.

20813334 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1734439 + ... + 1734450.

It is an arithmetic number, because the mean of its divisors is an integer number (5203335).

Almost surely, 2^20813334 is an apocalyptic number.

20813334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20813334 is a wasteful number, since it uses less digits than its factorization.

20813334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468894.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20813334 is about 4562.1633026449. The cubic root of 20813334 is about 275.0725274267.

The spelling of 20813334 in words is "twenty million, eight hundred thirteen thousand, three hundred thirty-four".